1.(√3+1)²-x=0 2.x²-5√2x+2=0 (3).2(3x-2)=(2-3x)(x+1)(4) x²+x-6=0 (5) x²-√3x-1/4=0 (6) 3x²-6x-2=0 (7) 4x²-6x=0(8) x²+4x+8=4x+11 (8) x(2x-4)=5-8x
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/25 17:56:14
![1.(√3+1)²-x=0 2.x²-5√2x+2=0 (3).2(3x-2)=(2-3x)(x+1)(4) x²+x-6=0 (5) x²-√3x-1/4=0 (6) 3x²-6x-2=0 (7) 4x²-6x=0(8) x²+4x+8=4x+11 (8) x(2x-4)=5-8x](/uploads/image/z/10115472-48-2.jpg?t=1.%EF%BC%88%E2%88%9A3%2B1%EF%BC%89%26%23178%3B-x%3D0+2.x%26%23178%3B-5%E2%88%9A2x%2B2%3D0+%EF%BC%883%EF%BC%89.2%EF%BC%883x-2%EF%BC%89%3D%EF%BC%882-3x%EF%BC%89%EF%BC%88x%2B1%EF%BC%89%EF%BC%884%EF%BC%89+x%26%23178%3B%2Bx-6%3D0+%EF%BC%885%EF%BC%89+x%26%23178%3B-%E2%88%9A3x-1%2F4%3D0+%EF%BC%886%EF%BC%89+3x%26%23178%3B-6x-2%3D0+%EF%BC%887%EF%BC%89+4x%26%23178%3B-6x%3D0%EF%BC%888%EF%BC%89+x%26%23178%3B%2B4x%2B8%3D4x%2B11+%EF%BC%888%EF%BC%89+x%EF%BC%882x-4%EF%BC%89%3D5-8x)
1.(√3+1)²-x=0 2.x²-5√2x+2=0 (3).2(3x-2)=(2-3x)(x+1)(4) x²+x-6=0 (5) x²-√3x-1/4=0 (6) 3x²-6x-2=0 (7) 4x²-6x=0(8) x²+4x+8=4x+11 (8) x(2x-4)=5-8x
1.(√3+1)²-x=0 2.x²-5√2x+2=0 (3).2(3x-2)=(2-3x)(x+1)
(4) x²+x-6=0 (5) x²-√3x-1/4=0 (6) 3x²-6x-2=0 (7) 4x²-6x=0
(8) x²+4x+8=4x+11 (8) x(2x-4)=5-8x
1.(√3+1)²-x=0 2.x²-5√2x+2=0 (3).2(3x-2)=(2-3x)(x+1)(4) x²+x-6=0 (5) x²-√3x-1/4=0 (6) 3x²-6x-2=0 (7) 4x²-6x=0(8) x²+4x+8=4x+11 (8) x(2x-4)=5-8x
x=(√3+1)²
不懂你的根号到哪
3x-2约掉,则2=-x-1,则x=-3
(x+3)(x-2)=0 x=-3或x=2
同2
用公式法
2x(2x-3)=0 x=0或x=3/2
x²=3 x=±根号3
用公式法